A mysterious signal lures the Voyager to an uncharted sector of the Delta Quadrant, where the crews find a ghost ship floating in space. Hoping the mysterious ship might hold a clue that could help her vessel return home, Janeway launches an investigation, and soon a strange presence casts a kind of spell over the crew. If Janeway can't pierce the ship's mystery, the Voyager may wind up drifting in space, another ships of ghostly inhabitants.